1 #!/bin/sh /etc/rc.common
2 # Copyright (C) 2007-2012 OpenWrt.org
15 CONFIGFILE
="/var/etc/dnsmasq.conf"
20 echo "${value#--}" >> $CONFIGFILE
27 while [ -n "$ip" ]; do
30 res
="$(($res + $part))"
31 [ "${ip%.*}" != "$ip" ] && ip
="${ip#*.}" || ip
=
41 config_get_bool _loctmp
"$section" "$option" 0
42 [ $_loctmp -gt 0 ] && xappend
"$value"
50 config_get _loctmp
"$section" "$option"
51 [ -z "$_loctmp" ] && return 0
52 xappend
"$switch=$_loctmp"
60 xappend
"--address=$1"
64 local ifname
=$
(uci_get_state network
"$1" ifname
"$1")
65 xappend
"--interface=$ifname"
68 append_notinterface
() {
69 local ifname
=$
(uci_get_state network
"$1" ifname
"$1")
70 xappend
"--except-interface=$ifname"
74 xappend
"--addn-hosts=$1"
77 append_bogusnxdomain
() {
78 xappend
"--bogus-nxdomain=$1"
83 append_bool
"$cfg" authoritative
"--dhcp-authoritative"
84 append_bool
"$cfg" nodaemon
"--no-daemon"
85 append_bool
"$cfg" domainneeded
"--domain-needed"
86 append_bool
"$cfg" filterwin2k
"--filterwin2k"
87 append_bool
"$cfg" nohosts
"--no-hosts"
88 append_bool
"$cfg" nonegcache
"--no-negcache"
89 append_bool
"$cfg" strictorder
"--strict-order"
90 append_bool
"$cfg" logqueries
"--log-queries"
91 append_bool
"$cfg" noresolv
"--no-resolv"
92 append_bool
"$cfg" localise_queries
"--localise-queries"
93 append_bool
"$cfg" readethers
"--read-ethers"
94 append_bool
"$cfg" dbus
"--enable-dbus"
95 append_bool
"$cfg" boguspriv
"--bogus-priv"
96 append_bool
"$cfg" expandhosts
"--expand-hosts"
97 append_bool
"$cfg" enable_tftp
"--enable-tftp"
98 append_bool
"$cfg" nonwildcard
"--bind-interfaces"
99 append_bool
"$cfg" fqdn
"--dhcp-fqdn"
100 append_bool
"$cfg" proxydnssec
"--proxy-dnssec"
102 append_parm
"$cfg" dhcpscript
"--dhcp-script"
103 append_parm
"$cfg" cachesize
"--cache-size"
104 append_parm
"$cfg" dnsforwardmax
"--dns-forward-max"
105 append_parm
"$cfg" port
"--port"
106 append_parm
"$cfg" ednspacket_max
"--edns-packet-max"
107 append_parm
"$cfg" dhcpleasemax
"--dhcp-lease-max"
108 append_parm
"$cfg" "queryport" "--query-port"
109 append_parm
"$cfg" "domain" "--domain"
110 append_parm
"$cfg" "local" "--server"
111 config_list_foreach
"$cfg" "server" append_server
112 config_list_foreach
"$cfg" "address" append_address
113 config_list_foreach
"$cfg" "interface" append_interface
114 config_list_foreach
"$cfg" "notinterface" append_notinterface
115 config_list_foreach
"$cfg" "addnhosts" append_addnhosts
116 config_list_foreach
"$cfg" "bogusnxdomain" append_bogusnxdomain
117 append_parm
"$cfg" "leasefile" "--dhcp-leasefile"
118 append_parm
"$cfg" "resolvfile" "--resolv-file"
119 append_parm
"$cfg" "tftp_root" "--tftp-root"
120 append_parm
"$cfg" "dhcp_boot" "--dhcp-boot"
121 append_parm
"$cfg" "local_ttl" "--local-ttl"
123 config_get DOMAIN
"$cfg" domain
125 config_get_bool ADD_LOCAL_DOMAIN
"$cfg" add_local_domain
1
126 config_get_bool ADD_LOCAL_HOSTNAME
"$cfg" add_local_hostname
1
128 config_get_bool readethers
"$cfg" readethers
129 [ "$readethers" = "1" -a \
! -e "/etc/ethers" ] && touch /etc
/ethers
131 config_get leasefile
$cfg leasefile
132 [ -n "$leasefile" -a \
! -e "$leasefile" ] && touch "$leasefile"
133 config_get_bool cachelocal
"$cfg" cachelocal
1
135 config_get hostsfile
"$cfg" dhcphostsfile
136 [ -e "$hostsfile" ] && xappend
"--dhcp-hostsfile=$hostsfile"
139 xappend
"--addn-hosts=/tmp/hosts"
142 config_get_bool rebind
"$cfg" rebind_protection
1
143 [ $rebind -gt 0 ] && {
145 "DNS rebinding protection is active," \
146 "will discard upstream RFC1918 responses!"
147 xappend
"--stop-dns-rebind"
149 local rebind_localhost
150 config_get_bool rebind_localhost
"$cfg" rebind_localhost
0
151 [ $rebind_localhost -gt 0 ] && {
152 logger
-t dnsmasq
"Allowing 127.0.0.0/8 responses"
153 xappend
"--rebind-localhost-ok"
156 append_rebind_domain
() {
157 logger
-t dnsmasq
"Allowing RFC1918 responses for domain $1"
158 xappend
"--rebind-domain-ok=$1"
161 config_list_foreach
"$cfg" rebind_domain append_rebind_domain
164 dhcp_option_add
"$cfg" "" 0
169 dhcp_subscrid_add
() {
172 config_get networkid
"$cfg" networkid
173 [ -n "$networkid" ] ||
return 0
175 config_get subscriberid
"$cfg" subscriberid
176 [ -n "$subscriberid" ] ||
return 0
178 xappend
"--dhcp-subscrid=$networkid,$subscriberid"
180 config_get_bool force
"$cfg" force
0
182 dhcp_option_add
"$cfg" "$networkid" "$force"
185 dhcp_remoteid_add
() {
188 config_get networkid
"$cfg" networkid
189 [ -n "$networkid" ] ||
return 0
191 config_get remoteid
"$cfg" remoteid
192 [ -n "$remoteid" ] ||
return 0
194 xappend
"--dhcp-remoteid=$networkid,$remoteid"
196 config_get_bool force
"$cfg" force
0
198 dhcp_option_add
"$cfg" "$networkid" "$force"
201 dhcp_circuitid_add
() {
204 config_get networkid
"$cfg" networkid
205 [ -n "$networkid" ] ||
return 0
207 config_get circuitid
"$cfg" circuitid
208 [ -n "$circuitid" ] ||
return 0
210 xappend
"--dhcp-circuitid=$networkid,$circuitid"
212 config_get_bool force
"$cfg" force
0
214 dhcp_option_add
"$cfg" "$networkid" "$force"
217 dhcp_userclass_add
() {
220 config_get networkid
"$cfg" networkid
221 [ -n "$networkid" ] ||
return 0
223 config_get userclass
"$cfg" userclass
224 [ -n "$userclass" ] ||
return 0
226 xappend
"--dhcp-userclass=$networkid,$userclass"
228 config_get_bool force
"$cfg" force
0
230 dhcp_option_add
"$cfg" "$networkid" "$force"
233 dhcp_vendorclass_add
() {
236 config_get networkid
"$cfg" networkid
237 [ -n "$networkid" ] ||
return 0
239 config_get vendorclass
"$cfg" vendorclass
240 [ -n "$vendorclass" ] ||
return 0
242 xappend
"--dhcp-vendorclass=$networkid,$vendorclass"
244 config_get_bool force
"$cfg" force
0
246 dhcp_option_add
"$cfg" "$networkid" "$force"
252 config_get_bool force
"$cfg" force
0
254 config_get networkid
"$cfg" networkid
255 [ -n "$networkid" ] && dhcp_option_add
"$cfg" "$networkid" "$force"
257 config_get name
"$cfg" name
258 config_get ip
"$cfg" ip
259 [ -n "$ip" -o -n "$name" ] ||
return 0
261 config_get mac
"$cfg" mac
263 [ -n "$name" ] ||
return 0
269 for m
in $mac; do append macs
"$m" ","; done
271 config_get tag
"$cfg" tag
273 xappend
"--dhcp-host=$macs${networkid:+,net:$networkid}${tag:+,set:$tag}${ip:+,$ip}${name:+,$name}"
281 [ -n "$tag" ] ||
return 0
283 config_get_bool force
"$cfg" force
0
284 [ "$force" = "0" ] && force
=
286 config_get option
"$cfg" dhcp_option
288 xappend
"--dhcp-option${force:+-force}=tag:$tag,$o"
295 config_get networkid
"$cfg" networkid
296 [ -n "$networkid" ] ||
return 0
298 config_get mac
"$cfg" mac
299 [ -n "$mac" ] ||
return 0
301 xappend
"--dhcp-mac=$networkid,$mac"
303 dhcp_option_add
"$cfg" "$networkid"
309 config_get networkid
"$cfg" networkid
311 config_get filename
"$cfg" filename
312 [ -n "$filename" ] ||
return 0
314 config_get servername
"$cfg" servername
315 [ -n "$servername" ] ||
return 0
317 config_get serveraddress
"$cfg" serveraddress
318 [ -n "$serveraddress" ] ||
return 0
320 xappend
"--dhcp-boot=${networkid:+net:$networkid,}$filename,$servername,$serveraddress"
322 config_get_bool force
"$cfg" force
0
324 dhcp_option_add
"$cfg" "$networkid" "$force"
330 config_get net
"$cfg" interface
331 [ -n "$net" ] ||
return 0
333 config_get networkid
"$cfg" networkid
334 [ -n "$networkid" ] || networkid
="$net"
336 config_get ifname
"$net" ifname
337 [ -n "$ifname" ] ||
return 0
339 config_get dnsserver
"$net" dns
340 [ "$cachelocal" = "0" -a -n "$dnsserver" ] && {
341 DNS_SERVERS
="$DNS_SERVERS $dnsserver"
344 append_bool
"$cfg" ignore
"--no-dhcp-interface=$ifname" && return 0
346 config_get proto
"$net" proto
347 [ static
= "$proto" ] ||
return 0
349 config_get ipaddr
"$net" ipaddr
350 config_get netmask
"$cfg" netmask
351 [ -n "$netmask" ] || config_get netmask
"$net" netmask
353 #check for an already active dhcp server on the interface, unless 'force' is set
354 config_get_bool force
"$cfg" force
0
355 [ $force -gt 0 ] ||
{
356 udhcpc
-n -q -s /bin
/true
-t 1 -i $ifname >&- && {
358 "found already running DHCP-server on interface '$ifname'" \
359 "refusing to start, use 'option force 1' to override"
364 config_get start
"$cfg" start
365 config_get limit
"$cfg" limit
366 config_get leasetime
"$cfg" leasetime
367 config_get options
"$cfg" options
368 config_get_bool dynamicdhcp
"$cfg" dynamicdhcp
1
370 leasetime
="${leasetime:-12h}"
371 start
="$(dhcp_calc "${start:-100}")"
372 limit
="${limit:-150}"
373 [ "$limit" -gt 0 ] && limit
=$
((limit-1
))
374 eval "$(ipcalc.sh $ipaddr $netmask $start $limit)"
375 if [ "$dynamicdhcp" = "0" ]; then END
="static"; fi
376 xappend
"--dhcp-range=$networkid,$START,$END,$NETMASK,$leasetime${options:+ $options}"
378 dhcp_option_add
"$cfg" "$networkid"
386 [ "$force" = "0" ] && force
=
388 config_get dhcp_option
"$cfg" dhcp_option
389 for o
in $dhcp_option; do
390 xappend
"--dhcp-option${force:+-force}=${networkid:+$networkid,}$o"
397 local ip name names record
399 config_get names
"$cfg" name
"$2"
400 [ -n "$names" ] ||
return 0
402 config_get ip
"$cfg" ip
"$3"
403 [ -n "$ip" ] ||
return 0
405 for name
in $names; do
406 record
="${record:+$record/}$name"
409 xappend
"--address=/$record/$ip"
415 config_get srv
"$cfg" srv
416 [ -n "$srv" ] ||
return 0
418 config_get target
"$cfg" target
419 [ -n "$target" ] ||
return 0
421 config_get port
"$cfg" port
422 [ -n "$port" ] ||
return 0
424 config_get class
"$cfg" class
425 config_get weight
"$cfg" weight
427 local service
="$srv,$target,$port${class:+,$class${weight:+,$weight}}"
429 xappend
"--srv-host=$service"
434 local domain relay pref
436 config_get domain
"$cfg" domain
437 [ -n "$domain" ] ||
return 0
439 config_get relay
"$cfg" relay
440 [ -n "$relay" ] ||
return 0
442 config_get pref
"$cfg" pref
0
444 local service
="$domain,$relay,$pref"
446 xappend
"--mx-host=$service"
453 config_get cname
"$cfg" cname
454 [ -n "$cname" ] ||
return 0
456 config_get target
"$cfg" target
457 [ -n "$target" ] ||
return 0
459 xappend
"--cname=${cname},${target}"
462 dhcp_hostrecord_add
() {
464 local names addresses record val
466 config_get names
"$cfg" name
"$2"
467 if [ -z "$names" ]; then
471 config_get addresses
"$cfg" ip
"$3"
472 if [ -z "$addresses" ]; then
476 for val
in $names $addresses; do
477 record
="${record:+$record,}$val"
480 xappend
"--host-record=$record"
485 procd_add_reload_trigger
"dhcp"
493 config_get lanaddr
"lan" ipaddr
498 procd_set_param
command $PROG -C $CONFIGFILE -k
501 # before we can call xappend
502 mkdir
-p $
(dirname $CONFIGFILE)
504 echo "# auto-generated config file from /etc/config/dhcp" > $CONFIGFILE
506 # if we did this last, we could override auto-generated config
507 [ -f /etc
/dnsmasq.conf
] && {
508 xappend
"--conf-file=/etc/dnsmasq.conf"
512 config_foreach dnsmasq dnsmasq
513 config_foreach dhcp_host_add
host
515 config_foreach dhcp_boot_add boot
516 config_foreach dhcp_mac_add mac
517 config_foreach dhcp_tag_add tag
518 config_foreach dhcp_vendorclass_add vendorclass
519 config_foreach dhcp_userclass_add userclass
520 config_foreach dhcp_circuitid_add circuitid
521 config_foreach dhcp_remoteid_add remoteid
522 config_foreach dhcp_subscrid_add subscrid
523 config_foreach dhcp_domain_add domain
524 config_foreach dhcp_hostrecord_add hostrecord
527 [ $ADD_LOCAL_HOSTNAME -eq 1 ] && [ -n "$lanaddr" ] && {
528 local hostname
="$(uci_get system @system[0] hostname OpenWrt)"
529 dhcp_hostrecord_add
"" "$hostname${DOMAIN:+.$DOMAIN $hostname}" "$lanaddr"
533 config_foreach dhcp_srv_add srvhost
534 config_foreach dhcp_mx_add mxhost
536 config_foreach dhcp_add dhcp
538 config_foreach dhcp_cname_add cname
541 rm -f /tmp
/resolv.conf
542 [ $ADD_LOCAL_DOMAIN -eq 1 ] && [ -n "$DOMAIN" ] && {
543 echo "search $DOMAIN" >> /tmp
/resolv.conf
545 DNS_SERVERS
="$DNS_SERVERS 127.0.0.1"
546 for DNS_SERVER
in $DNS_SERVERS ; do
547 echo "nameserver $DNS_SERVER" >> /tmp
/resolv.conf
552 [ -f /tmp
/resolv.conf
] && {
553 rm -f /tmp
/resolv.conf
554 ln -s /tmp
/resolv.conf.auto
/tmp
/resolv.conf